Moderate volume and easy installationThe wind pressure is very high.Suitable for customers who need high performance improvementsMotor Length 10cm Motor Material Metal Shell Blade Metal Leafa.Power off firstb.Esc switch knob is screwed to the minimum position.C.To connect dc 12 volt battery.The first step is to insert the three-needle plug into the out position of the tester.The white line is on the s-pole.There are three rows of arbitrary plugs in one row,and the knob is set to the minimum position.The second step is to weld the three rows of motor wires with the three wires adjusted by electricity without any color difference.After welding,tape should be wrapped to prevent short circuit.The third step is to connect a DC 12 volt power supply to an electrically regulated red connection positive pole and a black connection to the negative pole.After power on,the motor will make a sound,stop ringing after a few seconds,then slowly twist the knob of the tester to start the motor,the normal operation of the wind is from the motor tail discharge,if not to indicate that the motor reversed,the need to remove two of the motor wires to adjust and then weldingColor:silverMaterial:aluminum+plasticPackage Contents:1* Turbine1* Instruction manual1* ESCOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.